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1 Acarologia A quarterly journal of acarology, since 1959 Publishing on all aspects of the Acari All information: acarologia@supagro.inra.fr Acarologia is proudly non-profit, with no page charges and free open access Please help us maintain this system by encouraging your institutes to subscribe to the print version of the journal and by sending us your high quality research on the Acari. Subscriptions: Year 2018 (Volume 58): Previous volumes ( ): 250 / year (4 issues) Acarologia, CBGP, CS 30016, MONTFERRIER-sur-LEZ Cedex, France The digitalization of Acarologia papers prior to 2000 was supported by Agropolis Fondation under the reference ID through the «Investissements d avenir» programme (Labex Agro: ANR-10-LABX ) Acarologia is under free license and distributed under the terms of the Creative Commons-BY-NC-ND which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited.

2 А CONTRIВUTION ТО ТНЕ ECTOPARASITE FAUNA OF BATS IN THAILAND 1. FUR MITES OF ТНЕ FAMILY МУОВПDАЕ (ACARINA; TROМEIDIFORMES) ВУ KiMIТO UCНIKAWA * and TSUNEAКI КОБАУАSНI ** ABSTRACT Binuncus (Binuncus) jaтesoni (Hiregaudar et Баl, 1956). Binuncus (Probinuncus) cynopterus Fain, 1975, Metabinuncus birтanicus Fain, 1976, Neoтyobia plurihospitalis Uchikawa, 1978, Hipposiderobia okinawaensis Uchikawa, 1976, Hipposiderobia sp. 1 (male) and sp. 2 (tritonymph), Ugandobia (Ugandobia) dissiтilis spec. поу., Pteracarus pusillus thailandensis sspec. поу., Pteracarus sp. (female), and Acanthophthirius (Myotiтyobia) scotophili spec. поу. were recorded as parasites of bats in Thailand. The males of В. (В.) jamesoni and М. birmanicus were described, and the male plesiotypes of these 2 species were designated. Morphological accounts of nymphal stages of В. (Р.) cynopterus, М. birmanicus, N. plurihospitalis and Hipposiderobia sp. were presented. Z USAMMENFASSUNG Binuncus (Binuncus) jamesoni (Hiregaudae et Баl, 1956), Binunczls (Probinuncus) cynopterus Fain, 1975, Metabinиncus birтanicus Fain, 1976, Neoтyobia plurihospitalis Uchikawa, 1978, Hipposiderobia okinawaensis Uchikawa, 1976, Hipposiderobia sp. 1 (Mannchen) und sp. 2 (Tritonympha), Ugandobia (И gandobia) dissintilis spec. поу., Pteracarus pusillиs thailandensis sspec. поу., Pteracarus sp. (Weibchen), und Acanthophthirizts (Myotiтyobia) scotophili spec. поу. wurden als parasitische FlеdегщаusmilЬеп aus Thailand verzeichnet. Die Mannchen уоп В. (В.) jaтesoni und М. birтanicus wurden beschrieben, und die mannlichen Plesiotyppen dieser 2 Arten wurden bestimmt. Die morphologischen Anmerkungen iiber die Nymphen уоп В. (Р. ) cynopterus, М. birтanicus, N. plurihospitalis und Hipposiderobia sp. wurden gegeben. А survey 1 of mammalian fauna in Thailand was carried out during the period from August 21 to October 31 in 1974, under а cooperation with Applied Scientific Research Corporation of Thailand. Thirty-nine bats coprising about 20 species were collected Ьу the junior author ог were furnjshed with to him Ьу Мг. SONGSAKDI in the survey. These specimens that had Ьееп preserved in alcohol without pertition Ьу species yielded various acarine and insect parasites. The following * Department of Parasitology, Faculty of Medicine, Shinshu University, Matsumoto 390, Japan. ** Biological Laboratory, Yoshida College, Kyoto University, Kyoto 606, Japan. 1. Planned Ьу the Biological IJaboratory of Yoshida College, Kyoto University, and supported financially Ьу The Center for Southeast Asian Studies of Kyoto University. Acarologia, t. ХХ, fasc. 3, 1978.

3 аге records of myobiid mites. Misleading host records due to postmorten transfers of mites оп strange hosts within specimen containers for bats might Ье included. FIG Binuncus (Bi1~uncus) jamesoni (Hiregaudar et Баl), fешаlе. А) dогsuп1; В) vепt е г. Bimmcus (Binuncus) jamesoni (Hiregaudar et Bal, 1956) (Figs. 1-2) FEMALE (Fig. 1). Measurements аге based оп 2 specimens. Body (= idiosoma + gnathosoma) [.1. long Ьу [.1. wide. Setae vi fil1e, [.1. long ; ve, sc i and sc е strong, striated al1d taperil1g, [.1., [.1. al1d [.1. long, [espectively ; d 1 ргесеdiпg level of 11 ; d 4 short and simple ; d 1, d 2, dз, d 5, 11 and 12 stгiаtеd and t аре гil1g, [.1., [.1., [.1., [.1., [.1. and [.1. long, respectiyely ; d [.1. and [.1.. Setae ае situated apart ; gel1ital setae g4-в ргеs е пt, gз о п posterior margil1. Vеl1tгаl setae ic l - 4 and сх rv ргоmil1 еl1 t, slightly swollel1 and stгiаtеd ; 2 and 3 pairs of coxal setae оп coxal areas r al1d П, respectively. Gl1athosoma [.1. х 25 [.1. vel1trally. Some leg setae fine and long as illustгаtеd in Fig. 1А al1d В. MALE (Fig. 2). Only а sil1g1e specimen is avaiable. Body 470 [ g Ьу 220 [.1. vvide. Setae vi al1d sc i minute, [.1. long ; ve strol1g, striated al1d tapering, 110 [ g ; sc е 105 [.1. ; d 1 al1d d 2 subequal il1 lel1gth, [.1. long ; d 4 and d 5 88 [.1. and 48 [.1. long ; [.1. long. P enis straight and short, 105 [ g. Genital opel1ing almost at level of d 1 ; 3 pairs of mil1ute setae apart from pel1is slide ; several pairs of mil1ute setae оп pel1is slide. Ventral setae al1d leg setae as in female. Gnathosoma 33 [.1. х 22 [.1. vепtгаllу.

4 FIG Binuncus (Binuncus) jamesoni (Hiregaudar et Баl), male. А) dorsum ; Б) venter. м aterial examined. 1 ~ ех Rousettus leschnaulti, data uncertain ; 1 d' 1 ~ ех Eonycteris spelaea, data uncertain. НIRЕGЛUDЛR and ВЛL (1956) described this species based оп the female specimens, but the descriptions of the genital area, ventral setation and leg setae were not sufficient. As the male specimen was obtained for the first time, the present specimen is designated as the plesiotype, and is deposited in the collection of the National Science Museum, Tokyo (NSMT-Ac 9041). This species and Binuncus (В.) rouseti Fain closely resemble each other. Binuncus (Probinuncus) cynopterus Fain, 1975 (Fig. 3) Material examined. 3 ~~ and 2 deutonymphs ех Megaerops ecaudatus, Surin, Thailand, date uncertain. Females measured [L long Ьу [L wide, and were slightly smaller than the holotype female of this species that was taken from Cynopterus brachyotis from Mindanao Catabato, Philippine (Fain, 1975). The structures and setation оп any part of the mite accord, however, completely with the description Ьу FЛIN (1975). FЛIN (1975) characterised the subgenus Probinuncus as being furnished with terminal claws and а masive tibio-tarsus complex оп the leg 1, and mentioned that this subgenus was closer to

5 the genus Binиncиs, though it constituted а link between the genera Neomyobia Radford and Binиncиs Radford. Nothing is so far known about the morphology of immature stages of Руоbinиncиs. The nymphs obtained in the present study have legs r formed asymmetrically as shown in Fig. 3. This is not characteristic of the genus Neomyobia. FIG Binuncus (Probinuncus) cynopterus, Fain, del1tonymph. А) dorsum ; В) ventral,'ie,y of legs 1. М etabinиncиs birmanicиs Fain, 1976 (Figs. 4, 5) МЛLЕ (Fig. 4). Means followed Ьу ranges in parentheses аге based оп 9 specimens. Body ( ) [L long Ьу ( ) [L wide. Setae vi 13.0 (10-15) [L long ; ve (90-133) [L ; sc 1: 48.1 (40-58) [L; sc е ( ) [L; d (18-26) [L; d (53-80) [L; d (13-18) [L ; ( ) [L. Penis bent, ( ) [L long; genital opening situated anterior to setae sc i ; about 7 pairs of minute genital setae present. Only а pair of ventral setae, iс з, prominent (95-115) [L long. М aterial examined ~~ ех Hipposideros lavatиs, Muang Ngai, Thailand, 2 September 1975 ; ~~ 1 deutomymph, 1 protonymph ех Hipposideros armiger, Muang Ngai, Thailand, 2 September 1975; 2 ~~ ех Hipposideros lylei, Muang Ngai, Thailand, 2 September FЛIN (1976) described this species based оп the female specimens, and pointed out that the mite resembled Metabinиncиs novaegиineae (Fain, 1972). The male of Metabinиncиs birmanicиs Fain also very closely resembles that of М. novaegиineae. The situation of the genital opening, the number of genital setae (са. 7 pairs vs. 5 pairs) and the form of the penis (bent ог straight) аге differential characteristics of the two males.

6 FIG Metabinuncus birmanicus Fain, deutonymph. А) dorsum; В) venter., '",,, ' r \ ~ FIG Metabinuncus birmanicus Fain. А) deutonymph; В) protonymph.

7 FAIN (1976) elevated Metabinиncиs that had been included in the genus Binиncиs as а subgenus to а full genus. As the legs r of М. birmanicиs аге forтed syттetrically in the deuto- and protonyтphs (Fig. 5), this generic separation is thought to Ье reasonable. А тale speciтen is designated as the plesiotype, and is deposited in the collection of the National Science Museuт, Tokyo (NSMT-Ac 9042). N eomyobia plиrihospitalis Uchikawa, 1978 (Fig. 6) Material examined. 2 ~ ~ and а deutonyтph ех Rhinolophus yиnaens~s, Muang Ngnai, Thailand, 1 Septeтber '".; FIG Neomyobia plиr i hospitali s Uchikawa, deutonymph. А) dorsum; В ) venter. Although only 2 f eтale speciтens were exaтined, тeasureтents and structures of the Thai speciтens well accorded with the description of Neomyobia plиrihospitalis Uchikawa. The deutonyтph of N. plиrihospitalis Uchikawa is not yet described, though the structure and setal arrangent аге fully anticipated basing оп the descriptions of the trito- and protonyтphs in UCНIKAWA (1978). The nyтph just as expected and as i1lustrated in Fig. 6 was obtained in the present study. The setae ve аге well developed and bases of setae d 1 and II аге virtually оп а transverse line. The situation of the latter 2 setae is а good criterion for the differentiation of Neomyobia plиrihospitalis Uchikawa froт N. solvenica DusЬ3Ьеk, though the feтales of the both species closely reseтble each other.

8 Measurements are as follows : Body 272 [1. long Ьу 100 [1. wide ; setae ve 50 [1. long Ьу 15 [1. wide ; sc е 35!l. long ; sc i 66 [1. ; d1 43 [1. ; d'/, 28 [1. ; [1. ; 12 15!l. ; distance between d1 and d 2 43 [1. ; d'/, and [1. apart. Hipposiderobia okinawaensis Ucblkawa, 1976 (Fig. 7) м aterial examined. 4 ~~ ех Hipposideros armiger, Muang Ngai, Thailand, 2 September FIG Hipposiderobia okinawaensis Uchikawa, female. А) dorst1m; В) venter. The original discription of Hipposiderobia okinawaensis Uchikawa, 1976 was based оп а single male and 2 females. Measurements for the present 4 females are as follows : Body ( ) [1. long Ьу ( ) [1. wide. Setae ve, sc е, d1, d 2, d 4, 11 and (68-78) [1., ( ) [1., 33.3 (29-38) [1., 25.8 (23-31) [1., 21.5 (15-28) [1., 85.8 (80-90) [1. and 16.5 (15-18) [1.10ng, respectively. The size of the body is slightly larger than that of the allotype and а paratype, and setae ve, sc е and 11 are approximately 1.5 times as long as those of the type specimens. Since il1traspecific variation of Н. okinawaensis has not fully been studied, the present authours inclines to identify the Thai mites as Н. okina7ijaensis despite of the above differences in measurements as well as the difference in the host bats. Н. okinawaensis is unique in having а pair of terminal claws ventrally оп legs 1, which were not referred to in the original description (UCНIKAWA, 1976). The drawings of the female are presented in Fig. 7А and В for better understanding of tbls species.

9 - 375 Hipposiderobia Sp. 1 (6) (Fig. 8) м ateria1 examined. Only а single male specimen found free in alcohol at bottom of а bat container. This male resembles that of Н. okinawaensis, but is distinctive in having 6 pairs of minute setae anterior to the genital opening, minute setae d 1 and d 2, and опе each of conspicuous dorsal setae оп the femur r and tibia r. The terminal claws оп leg r are not discernible оп the specimen. FIG Hipposiderobia sp. 1, male. А) dorsum; В) venter. Measurements are as follows : Body 210 [L long Ьу 125 [L wide. Setae ve, sc е, 11 and d 2 48 [L, 68 [L, 64 [L and 8 [L long, respectively. Penis sinuate distally, 70 [L long. Аll measurements are smaller than those for the holotype of Н. okinawaensis. This mite is probablly new to science. The dorsum and venter of the mite are as presented in Fig. 8А and В. Нipposiderobia sp. z (tritonymph) (Fig. 9) А tritonymph of anonymous Hipposderobia was taken from Rhino1ophиs yиnaensis from Mang Ngai, Thailand, date uncertain. Some female structures are clearly discernible through the integument. Since the setae vi of embedded female are barbed and striated, this mite differs from Н. okinawaensis and its relatives. Morphology of immature stages of the genus Hipposiderobia Dusbabek is quite unknown. The present specimen reveals that the legs r of the tritonymph are formed asymmetrically, and that inflated and striated setae ve, sc е, 11 and fine 15 are unlike those оп the adult. The conspicuous structures, inclusive of some setae, are as illustrated in Fig. 9. Fine setae other than those in figure might Ье present. Exact structure of the gnathosoma is not examined.

10 From the structure of the legs I and setae 15 of the tritonymph, both of which are characteristic of the family Myobiidae, the genus Hipposiderobia Dusbabek is thought to Ье allied to the genus Ioanne1a Dusbabek a11d Lukoskus occurri11g оп а phyllostomid bat. /.;.) / \.; " (,----- FIG Hipposiderobia sp., tritonymph. А) venter ; В) dorsum. Ugandobia (Ugandobia) dissimilis spec. 110У. (Figs. 10, 11, 12) FEMALE (Fig. 10). Holotype measured 465 fl long, inclusive of g11athosoma, a11d 152 fl wide. Setae vi simple a11d minute, 12 fl long; ve swollen basally and striated, 58 fl 1011g : sc i a11d sc е same i11 nature as ve 48, fl a11d 80 fl 1011g, respectively, situated 011 а tra11sverse line; opisthosomal setae striated a11d some ones barbed; d1 situated anterior to 11' 45 fl long ; d 2 29 fl; dз a11d d4 20 fl ; d 5 15 fl ; fl ; fl and fl. Ge11ital hooks absent ; genital setae as illиstrated in Fig 10 А and В. Ventral setae ic 1-4 fi11e and 1011g ; сх 11-2' СХ НИ and сх IV 1 present. Leg I consisting of 4 segments ; the third a11d fourth segme11ts segme11ted i11completely ; по striated setae prese11t; а shell-like, striated formatio11 ve11trally 011 distal segment. Paired claws оп tarsus II subequal; claw formula of legs H-1V, ; some dorsal and ventral setae fine and long as illиstrated in Fig. 10А and В. Gnathosoma 25 fl Х 10 fl ventrally. MALE (Fig. 11). Allotype and а paratype measured fl long Ьу fl wide. Setae vi minute, about 10 fl long ; sc i much smaller than vi ; ve striated, fl long ; sc е striated, fl long ; d1 situated оп anterior third level between sc е and 11' striated, barbed and fl long; d 2 almost оп level of 11' same in nature as d1, fl long ; d 4 and d fl long ; fl long, fl long. Setation and setal nature оп venter of idiosoma and legs essentially as in female. Genital opening close to d 1 ; about 8 genital setae оп sclerite; penis originating from slightly posterior to d 4, long, strongly bent at distal part.

11 FIG Ugandobia (Ugandobia) dissimilis spec. nov., fешаl е. А) dогsuш ; В) venter. ' \ '",,. 11 FIG Ugandobia (Ugandobia) dissimшs spec. nov., male. А) dorsum; В) venter.

12 ф FIG UgandobIa (UgandobIa) dlsslmшs spec. поу., deutonymph (DN), protonymph (PN) and larva (L). Upper-dorsal view, lower-ventral view.

13 DEUTONYMPH (Fig. 12 DN). Measurements as presented as means followed Ьу ranges in parentheses are based оп 5 specimens. Body ( ) fj. long, inclusive of leg Т, Ьу 86.0 (80-90) fj. wide. Conspicuous setae ve and sc е 41.8 (40-43) fj. and 63.6 (60-65) fj.long, respectively ; vi and sc i lacking; аll opisthosomal setae corresponding to those of female present, of which d 1 and 11 are well developed. Legs Т asymmetrical, with а peglike, striated seta оп femur 1. Coxal chaetotaxy as follows : 2 (one modifi.ed) PROTONYMPH (Fig. 12PN). Measurements as in deutonymph are based оп 5 specimens. Body ( ) fj. long, inclusive of leg 1, Ьу 82.8 (80-85) fj. wide. Setae ve and sc i 37.8 (35-40) fj. and 61.2 (60-63) fj. long. Setation оп dorsum and venter almost as in deutonymph. but lacking setae 14. Coxal chaetotaxy as follows : 2 (one modifi.ed) LARVA (Fig. 12L). Only а single specimen is available. Body 260 fj.long, inclusive of leg 1, Ьу 70 fj. wide. Only setae sc е present оп propodosoma, 55 fj. long ; opisthosomal setae consisting of 6 pairs, inclusive of considerably devejoped 1з and 15 of 35 fj. Jong and ending in notched tips. Legs Т symmetrical, without peg-like setae оп femur. Only а single pair of intercoxal setae present. м ateria1 exaтined. Holotype female, allotype male, а paratype male, 8 deutonymphs, 5 protonymphs and а larva ех Tophozous тe1anopogon, Yale, Thailand, date uncertain. The holotype and allotype are deposited in the collection of the National Science Museum, Tokyo (NSMT-Ac 9039,9040), and а paratype male and immature stages in the collection of К. Uchikawa. This new species resembles И gandobia (И gandobia) barn1eyi (Radford) that was once recorded from Tndian Thaphozous longiтanus (Hiregaudar et Bal, 1956). The relative length of setae sc i and sc е, nature of the dorsaj. opisthosomal setae of the female, and nature of ventral setae ic1 are different between the new species and u. (и.) barn1eyi (Radford). The setation оп the propodosoma in the immature stages distinctly differs from that in the genus Exp1etobia Dusbabek and Lukoschus, which was recently elevatedfrom а subgenus of И gandobia (Fain, 1976). Although this remarkable setation lacking vi and sc i seems а generic characteristic, further studies оп immature stages of other species are necessary for confi.rming а соттоп setation in the genus. Pteracarus pusillus thailandensis sspec. nov. (Figs. 13, 14, 15) FEMALE (Fig. 13). Holotype and а single paratype were measured. Body 3381,-470 fj.long Ьу fj. wide. Setae ve fj. ; vi 9-10 fj.; sc е 105 fj.; sc i 8-9 fj.; d fj.; d5 5-6 fj.; fj. ;lз13-13 fj.; fj.; fj.; сх Нз fj.; ic fj.; сх IV fj.. Setae ic1, ic 2, сх Н 1 and iс з fi.ne and long as iп Fig. 13. Ventral spines оп tibia ТП and TV 8-10 fj. and 10 fj., respectively. MALE (Fig. 14). Allotype and а single paratype were measured. Body fj. long Ьу fj. wide. Setae ve fj. ; vi 5 fj. ; sc е fj. ; sc i 5 fj. ; d1 5 fj. ; d 2 vestigial ; fj. ; fj., fj., сх Нз 15 fj. ; ic fj. ; сх TV fj. ; ventral setae as in female. Ventral spines оп tibiae НТ and IV 9-10 fj. and fj., respectively. Genital opening situated slightly posterior to level of sc е, surrounded Ьу probablly 4 pairs of minute setae. Penis originating from slightly anterior level of setae 14' and sinuate distally in the allotype, but it originating from level slightly posterior to midway between 11 and 14' and looped in the paratype. Acrologia, t. ХХ, fasc. 3, I978. 5

14 ; FIG Pteracarus рusшus thailandensis sspec. nov., female. А) dorsum; В) venter. FIG Pteracarus рusшus thailandensis sspec. nov., male. А) dorsum; В) venter.

15 МЛLЕ TRIТONYMPH (Fig. 15). А single specimen was measured. Body 290 [llong Ьу 185 [l wide. Setae ve 40 [l ; sc е 43 [l ; sc i 33 [l and lз vestigal. Setae сх 12-3 modified into spines, iс 1 - з and сх П l - 2 fine and long, and ic4 fine and shorter than preceding setae. Two each of ventral setae оп femur 1 and genu 1 modified into spines ; ventral spines оп tibiae П1 and rv subequal, about 10 [l long. 7М'''----'= 158., FIG Pteracarus pusillus thailandensis sspec. nov., male tritonymph. А) dorsum ; В) venter. м aterial examined. Holotype female, allotype male, а pair of та]е and female paratypes and а male tritonymph ех Scotophilus kuhlii, Уа]а, Thailand, date uncertain. The holotype and allotype аге deposited in the cojlection of the National Science Museum, Tokyo (NSMT-Ac 9037, 9038), and the paratypes in the collection of К. Uchikawa. The new subspecies is separable from the nominate form, the distribution of which has so far been ristricted to Africa, Ьу the following characteristics. The ventral setae, iс 1 - з and сх П l - 2 ' аге fine and very long in the female, male and tritonymph. The ventral spines оп the tibiae IП and 1V slightly shorter than those of the nominate form in the adults and tritonymph. Modified setae ventrally оп соха 1, femur r and genu r of the tritonymph аге spiniform and distingushable {гот those of the nominate subspecies presented in fig. 18 in DUSBABEK (1973). Pteracarus sp. (~) (Fig. 16) А single female taken from Tylonycteris sp. from Yale, Thailand, date uncertain, is unique in having rather sllort setae ve and in lacking dз and а5 as illustrated in Fig. 16. Measurements аге as follows : Body 295 [llong Ьу 215 [l wide. Setae ve 53 [l ; vi 10 [l ; sc е 100 [l ; sc i 10 [l ; а4 6 [l; [1 97 [l; lз 15 [l; сх П З 11 [l; ic4 13 [l; сх rv 10 [l. Ventral spine оп tibiae IП and rv rather small.

16 Fig Pteracarus sp., female. А) dorsum, В) venter. It is reminded that DUSBABEK (1973) presented an anonymous male, Pteracarus sp. Е, from Tylonycteris robustula taken near Kuala Lumpur, Malaysia, which possessed short ve and rather small spines ventrally оп tibiae ПI and rv. The present female is possible partner of Pteracarus sp. Е, but further studies are necessary. Acanthophthirius (MyotimyoMa) scotophili spec. nov. (Figs. 17, 18) FEMALE (Fig. 17). Measurements are based оп 3 specimens. Body fl long Ьу fl wide. Setae vi, ve, sc i and sc е 93 fl, 160 fl, fl and fl long, respectively; а1 -аб fl, fl, fl, fl and fl long, respectively ; ll' l2 and l fl, fl and fl long, respectively. А pair of conspicuous circlelets anteriad from vi. Unstriated area surrounding genito-anal region. Genital setae g5-7 prominent ; g7 stout and corne-shaped; gs longer than g6; g3-4 оп membranous valves. Genital hooks present. Anal setae ai and ае spiniform; ае longer than ai. Ventral setae ic 2 апdiсзlопg ; ic4 spiniform, and less than twice as long as сх TV. Genital setae gl and g2 present. Distribution of sclerites as in Fig. 17В. Gnathosoma small, fl Х 40 fl ventrally. MALE (Fig. 18). Measurements are based оп 4 specimens. Body fl long Ьу fL wide. Setae vi minute, 8-10 fl long. Setae ve, sc i, sc е, а 1, а 2 and II fl, fl, fl, fl, fl and fl long, respectively. Setae а4, а б and l4 minute. Penis s1ide sack-like distally, bearing 5 pairs of rather strong setae and а pore. Penis long and weakly sinuate. Ventral setation essentially as in female, but iс з spaced apart. Gnathosoma 38 fl Х 30 fl ventrally. Material examined. 4 ~~, 4 ~~ and а larva ех Scotophilus kuhlii, Yala, Thailand, date uncertain. The holotype female and allotype male are deposited in the collection of the N ational Science Museum, Tokyo (NSMT-Ac 9035, 9036).

17 Acanthophthiriиs (Myotimyobia) scotophili spec. nov. closely resembles Acanthophthirius (Myotimyobla) иnciger (Lawrence, 1951), а parasite of Scotophilиs nigrita from South Africa. Detailed morphology was not present ed in the original description of А. (М.) inciger (Lawrence), but the penis and genital plate аге formed different1y in the males of the above 2 species. Fig Acanthophthirius (Myotimyobia) scotophili, spec. nov., female. А) dorsum, В) venter. 1"[(, Acanthophthirius (Myotimyobia) scotophili, spec. nov., male. А) dorsum, В) venter.

18 The present new species is also al1ied to Acanthophthirius fortuitous (Radford, 1952), which was described basing оп the female taken from Scotophilus wroughtoni from India. Опlу а single pair of genital setae, g7' are cone-like in the female of А. (М.) scotophili spec. nov., while the genital pore of А. (М.) fortuitous (Radford) is described to Ье flanked Ьу three pairs of stout, cone-like spines. As remarkable differences are usually detectable between males of the suьgеппs Myotimyobia, partner females of which closely resemble each other, the above minor but distinctive difference in the genital setae of the female is thought to Ье sufficient to separate species. ACKNOWLEDGMENTS Gratitude is expressed to Dr. Sawart Ratanaworabhan, CHef of the Agricu1tural Zoology Section, Department of Agricu1ture, and to Dr. Prasart, Applied Scientific Research Corporation of Thailand, fort heirpertinent suggestions and kind co-operations throughout the fauna] survey in Thailand. Thanks are a1so due to Mr. Songsakdi, Mr. Preecha, Mr. Prajong, Mr. Sermsakdi and Miss Cora for t11eir excehent cooperation and assistance in field works. REFERENCES FAIN (А.), Diagnoses de поиуеаих Myobiidae (Acarina : Trombidiformes). - Rev. Zool. Bot. Afr., 86 : FAIN (А.), Some myobiids fгощ eastern Asia and The Pacific Агеа, with description of а new species (Acarina : Myobiidae). -- ВиН. Апп. Soc. 1'. be1ge Ent., 111 : FAIN (А.), Notes sur des Myobiidae parasites de Rongeurs, d'insectivores et de Chiropteres (Acarina : Prostigmata). - Acta Zool. Patholog. Antverp., 64 : DUSBABEK (F.), А systematic review of the genus Pteracarus (Acariformes : Myobiidae). - Acarologia, 15 : DUSBABEK (F.) & LUKOSCHUS (F. S.), Parasitic mites of Surinam XXIII. Ioannela тartae, new genus and new species (Acarina : Myobiidae) fгощ а phyllostomid bat. - Zo01. Anz., Leipzig, 191 : HIREGAUDAR (L. S.) & BAL (D. V.), Sоще ectoparasites of bats from India. - Atra Univ. J. Res. (Sci.), 5 : (Myobiidae). LAWRENCE (R. F.), New fur-mitesfrom South African mammals. - Апп. Natal. Mus., 12 : RADFORD (С. R.), А revision of the fur mites Myobiidae (Acarina) (suite). - ВиН. Mus. Natl. Hist. Nat. (Paris), 24 : UCНIKAWA (К), Myobiid mites (Acarina, Myobiidae) parasitic оп bats in Japan П. Genus Hipposiderobia Dusbibek, Annot. zo01. Japon., 49 : UCНIKAWA (К), ~ Myobiid mites (Acarina, Myobiidae) parasitic оп bats in Japan ПI. Genus Neoтyobia Radford, Annot. Zoo1. Japan, 51 : Рауu еn Juillet 1979.